CN106313264A - Preparation method of bamboo-wood composite polyurethane foaming material artificial board - Google Patents
Preparation method of bamboo-wood composite polyurethane foaming material artificial board Download PDFInfo
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- CN106313264A CN106313264A CN201610735395.9A CN201610735395A CN106313264A CN 106313264 A CN106313264 A CN 106313264A CN 201610735395 A CN201610735395 A CN 201610735395A CN 106313264 A CN106313264 A CN 106313264A
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- bamboo
- wood
- polyurethane resin
- foaming
- preparation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a preparation method of a bamboo-wood composite polyurethane foaming material artificial board. The artificial board is prepared from a wood veneer, bamboo filaments, bamboo powder and a polyurethane resin foaming material in a composite mode. A rotary cut veneer or thin plywood is adopted for building a molded framework of an outer layer, and a core layer is prepared from bamboo filaments, bamboo scraps and foaming polyurethane resin in a composite mode. The method comprises the operation steps that a thick veneer or thin plywood obtained through wood rotary cut is selected as a surfaced material at first, and the bamboo scraps and the foaming polyurethane resin are used as core materials, wherein the foaming polyurethane resin is prepared from polyurethane resin, a foaming agent, a catalyst and a stabilizing agent; then, the thick veneer or the thin plywood obtained through wood rotary cut is selected for processing and building the molded framework and placed in mold pressing equipment; the foaming polyurethane resin is mixed to be uniform according to the component matching ratio, the bamboo filaments and the bamboo powder are added, the components are mixed and stirred, and the mixture is quantitatively injected into a molding mold; and finally curing molding, aftertreatment and inspection are carried out for storage. The product prepared through the method has the advantages of being low in density, stable in structural size and good in sound absorption, heat preservation and heat insulation effect, and is the ideal material for building non-bearing components and indoor decoration.
Description
Technical field
The present invention relates to the manufacture method of building materials field wood-based plate, be specifically related to a kind of bamboo wood composite polyurethane expanded material
The preparation method of wood-based plate.
Background technology
China is located in bamboo distribution center of the world, is the country that bamboo resource is the abundantest in the world, and bamboo wood is by more and more wider
The general every aspect being applied to life, also promotes the development of bamboo industrialization simultaneously, but consequent a large amount of bamboo processing
Residue is the most extensively utilized, and major part is taken as fuel or garbage, also produces serious while causing the wasting of resources
Environmental pollution.If rational exploitation and utilization Bamboo leftover, can preferably realize economic and social profit, promote that bamboo produces
Industry benign cycle and sustainable development.
More existing polyurethane and glass fabric, polyurethane wood powder blown rigid material, amino resins artificial bamboo board
Reporting Deng analogous technical patent or document, its composite is usually used in load-bearing structural member.These materials are used for construction and decoration material
There is following defect in material: one is owing to density is higher, and structural panel weight is big, and manufacturing cost is high, uses and installs inconvenience；Two are
The content of formaldehyde of amino resins wood-based plate is higher, and pollution on the environment and Health Impact are the most serious.
Summary of the invention
It is an object of the invention to provide that a kind of density is low, quality is light, physical dimension is stable, acoustical absorption heat preserving heat-proof quality is good,
Good mechanics and surface property, can weather-proof protection against the tide, the preparation of bamboo wood composite polyurethane expanded material wood-based plate of environmental protection
Method, the product that the method prepares is mainly used in the field such as building materials nonload bearing element and house decorative material engineering.
For realizing object above, the preparation method of the present invention a kind of bamboo wood composite polyurethane expanded material wood-based plate uses wood
Matter veneer, bamboo silk, bamboo powder, polyurethane resin expanded material are compound to be prepared from, and its outer layer is by rotary cut venner or thin plywood
Building shaping frame, sandwich layer is bamboo traditional instrument bits and the composite of foaming polyurethane resin composition, and preparation manipulation step is as follows:
(1) raw material prepares: timber rotary-cut thickness veneer or the thin plywood of selecting thickness to be 2～3mm are surfacing；Select form
The bamboo silk of a size of 10～100mm* 5～15mm*0.10～0.35 mm, through 40～120 mesh sieves be divided into particle diameter be 0.10～
0.35 mm bamboo bits and foaming polyurethane resin be core material, foaming polyurethane resin by polyurethane resin, foaming agent, urge
Agent and stabilizer are formulated；
(2) shaping frame: according to performance requirement and the product needed of molding apparatus, the length of adjustable base material book size and
Width, its thickness is 20～50mm, selects the thick veneer of timber rotary-cut or the processing of thin plywood to build shaping frame, is placed in molding
In equipment；
(3) mix and blend: polyurethane resin, foaming agent, catalyst and stabilizer are modulated uniformly according to the following ratio, and proportioning is poly-ammonia
Ester resin, foaming agent, catalyst, stabilizer mass fraction are respectively 70～90%, 5～25%, 0.5～2.5%, 0.5～2.5%；
According to product density 0.25～0.45g/cm3Adjust bamboo silk and bamboo powder increments, add bamboo silk and the matter of mass ratio 10%～30%
The amount bamboo powder rear uniform stirring 1～2min to be mixed than 5%～10%, mechanical agitation speed is 1000～3000 r/min, and fixed
Amount adds injection mould；
(4) curing molding: be placed in press by mould, applies plane and lateral unit pressure 1.0～2.0MPa, temperature 20
～60 DEG C, time 0.5～1.5min/mm, pressurization terminates rear blood pressure lowering and unloads plate；
(5) post processing: sheet material cools down edging sanding, removes the loose part of edge, makes board dimension reach the requirement of regulation；
(6) inspection warehouse-in: with reference to standard GB/T/T17657-2013 " wood-based plate and face artificial board physicochemical property test side
Method ", GB/T30100-2013 " building wall board test method " detect physical and mechanical property.
The wood single-plate of the described operation first step, bamboo silk and bamboo powder drying equipment be dried under the conditions of 60～120 DEG C to
Moisture content 3～12%.
The polyurethane resin of the described operation first step and the 3rd step selects polyether polyol, belongs to polyether polyol
In polymer polyol alcohols, it is with polyether polyol as matrix, gathers through body in polyhydric alcohol through acrylonitrile or styrene
Close and prepare, i.e. polyether polyol, hydroxyl value index is 400～800 mgKOH/g.
The foaming agent of the described operation first step and the 3rd step is a fluorine dichloroethanes.
The catalyst of the described operation first step and the 3rd step is the one in dimethylamine, trimethylamine or triethylamine.
The stabilizer of the described operation first step and the 3rd step is triethylene diamine.
The preparation method of above-mentioned bamboo wood composite polyurethane expanded material wood-based plate utilizes Wooden veneer, bamboo silk, bamboo powder, poly-ammonia
Ester resin foamed material is compound prepares a kind of light-duty artificial board substrate, has that density is low, physical dimension is stable, acoustical absorption heat preserving is heat insulation
The features such as performance is good, the most also have the performances such as good mechanical property, surface property and weather-proof protection against the tide, are a kind of energy-conserving and environment-protective
The biological material of sustainable use, can be widely applied to the field such as building materials nonload bearing element, house decorative material engineering.
Detailed description of the invention
Preparation side below in conjunction with detailed description of the invention bamboo a kind of to present invention wood composite polyurethane expanded material wood-based plate
Method is described in further detail.
Enumerate three specific embodiments at this according to different technical parameters, and implementation result is described.
Embodiment 1
(1) raw material prepares: the thin plywood selecting thickness to be 3mm is surfacing；Selecting shape size is 100* 15*0.35
The bamboo silk of mm, it is divided into bamboo bits that particle diameter is 0.10mm and foaming polyurethane resin is core material through 120 mesh sieves.Polyurethane resin
Selecting polyether polyol, its hydroxyl value index is 400mgKOH/g；Foaming agent is a fluorine dichloroethanes (HCFC-141b)；
Catalyst is dimethylamine；Stabilizer is triethylene diamine (A33)；Bamboo silk and bamboo powder drying equipment be dried under the conditions of 60 DEG C to
Moisture content 12%.
(2) shaping frame: according to performance requirement and the product needed of molding apparatus, adjustable base material book size is
2440*1220*50mm, selects the thick veneer of timber rotary-cut or the processing of thin plywood to build shaping frame.
(3) mix and blend: polyurethane resin be the auxiliary agents such as polyether polyol, foaming agent, catalyst, stabilizer by
Uniformly, proportioning is that polyether polyol, foaming agent, catalyst, stabilizer mass fraction are respectively to the modulation of following proportioning
70%、25%、2.5%、2.5%；According to product density 0.25g/cm3Adjust bamboo silk and bamboo powder increments, add the bamboo of mass ratio 10%
Silk, 5% the mixing such as bamboo powder after uniform stirring 2min, mechanical agitation speed is 1000r/min.
(4) curing molding: be placed in press by mould, applies plane and lateral unit pressure 1.0MPa, temperature 60
DEG C, time 1.5min/mm, pressurization terminates rear blood pressure lowering and unloads plate.
Embodiment 2
(1) raw material prepares: the thick veneer of the timber rotary-cut selecting thickness to be 2.5mm is surfacing；Selection shape size is 50*
The bamboo silk of 10*0.25mm, it is divided into bamboo bits that particle diameter is 0.25 mm and foaming polyurethane resin is core material through 80 mesh sieves.Poly-
Polyether polyol selected by urethane resin, and its hydroxyl value index is 600mgKOH/g；Foaming agent is a fluorine dichloroethanes
(HCFC-141b)；Catalyst is trimethylamine；Stabilizer is triethylene diamine (A33)；Wood single-plate, bamboo silk and bamboo powder drying
Equipment is dried to moisture content 8% under the conditions of 90 DEG C.
(2) shaping frame: according to performance requirement and the product needed of molding apparatus, adjustable base material book size is
2440*1220*35mm, selects the thick veneer of timber rotary-cut or the processing of thin plywood to build shaping frame.
(3) mix and blend: polyurethane resin be the auxiliary agents such as polyether polyol, foaming agent, catalyst, stabilizer by
Uniformly, proportioning is that polyether polyol, foaming agent, catalyst, stabilizer mass fraction are respectively to the modulation of following proportioning
80%、17%、1.5%、1.5%；According to product density 0.35g/cm3Adjust bamboo silk and bamboo powder increments, add the bamboo of mass ratio 20%
Silk, 7% the mixing such as bamboo powder after uniform stirring 1.5min, mechanical agitation speed is 2000 r/min.
(4) curing molding: be placed in press by mould, applies plane and lateral unit pressure 1.5MPa, temperature 40
DEG C, time 1.0min/mm, pressurization terminates rear blood pressure lowering and unloads plate.
Embodiment 3
(1) raw material prepares: the thick veneer of the timber rotary-cut selecting thickness to be 2mm is surfacing；Selection shape size is 10*5*
The bamboo silk of 0.10mm, it is divided into bamboo bits that particle diameter is 0.10mm and foaming polyurethane resin is core material through 40 mesh sieves.Polyurethane
Polyether polyol selected by resin, and its hydroxyl value index is 800mgKOH/g；Foaming agent is a fluorine dichloroethanes (HCFC-
141b)；Catalyst is triethylamine；Stabilizer is triethylene diamine (A33)；Wood single-plate, bamboo silk and bamboo powder drying equipment exist
It is dried to moisture content 3% under the conditions of 120 DEG C.
(2) shaping frame: according to performance requirement and the product needed of molding apparatus, adjustable base material book size is
2440*1220*20mm, selects the thick veneer of timber rotary-cut or the processing of thin plywood to build shaping frame.
(3) mix and blend: polyurethane resin be the auxiliary agents such as polyether polyol, foaming agent, catalyst, stabilizer by
Uniformly, proportioning is that polyether polyol, foaming agent, catalyst, stabilizer mass fraction are respectively to the modulation of following proportioning
90%、9%、0.5%、0.5%；According to product density 0.45g/cm3Adjust bamboo silk and bamboo powder increments, add the bamboo of mass ratio 30%
Silk, 10% the mixing such as bamboo powder after uniform stirring 1min, mechanical agitation speed is 3000 r/min.
(4) curing molding: be placed in press by mould, applies plane and lateral unit pressure 2.0MPa, temperature 20
DEG C, time 0.5min/mm, pressurization terminates rear blood pressure lowering and unloads plate.
The related process parameters of three above embodiment and product quality indicator contrast are shown in Table 1, embodiment system as seen from Table 1
Standby properties of product substantially meet the requirement of intended application, have the features such as density is low, good mechanical properties, heat-proof quality are good.
Table 1 each embodiment Contrast on effect table
It should be noted that, the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, do not taking off
On the premise of the principle of the invention, it is also possible to improved according to the above description or modify, all these improvement or modification are all answered
Fall in the protection domain of the claims in the present invention.
Claims (6)
1. a preparation method for bamboo wood composite polyurethane expanded material wood-based plate, is characterized in that: use Wooden veneer, bamboo silk,
Bamboo powder, polyurethane resin expanded material are compound to be prepared from, and its outer layer is to be built shaping frame by rotary cut venner or thin plywood,
Sandwich layer is bamboo traditional instrument bits and the composite of foaming polyurethane resin composition, and preparation manipulation step is as follows:
(1) raw material prepares: timber rotary-cut thickness veneer or the thin plywood of selecting thickness to be 2～3mm are surfacing；Select form
The bamboo silk of a size of 10～100mm* 5～15mm*0.10～0.35 mm, through 40～120 mesh sieves be divided into particle diameter be 0.10～
0.35 mm bamboo bits and foaming polyurethane resin be core material, foaming polyurethane resin by polyurethane resin, foaming agent, urge
Agent and stabilizer are formulated；
(2) shaping frame: according to performance requirement and the product needed of molding apparatus, the length of adjustable base material book size and
Width, its thickness is 20～50mm, selects the thick veneer of timber rotary-cut or the processing of thin plywood to build shaping frame, is placed in molding
In equipment；
(3) mix and blend: polyurethane resin, foaming agent, catalyst and stabilizer are modulated uniformly according to the following ratio, and proportioning is poly-ammonia
Ester resin, foaming agent, catalyst, stabilizer mass fraction are respectively 70～90%, 5～25%, 0.5～2.5%, 0.5～2.5%；
According to product density 0.25～0.45g/cm3Adjust bamboo silk and bamboo powder increments, add bamboo silk and the matter of mass ratio 10%～30%
The amount bamboo powder rear uniform stirring 1～2min to be mixed than 5%～10%, mechanical agitation speed is 1000～3000 r/min, and fixed
Amount adds injection mould；
(4) curing molding: be placed in press by mould, applies plane and lateral unit pressure 1.0～2.0MPa, temperature 20
～60 DEG C, time 0.5～1.5min/mm, pressurization terminates rear blood pressure lowering and unloads plate；
(5) post processing: sheet material cools down edging sanding, removes the loose part of edge, makes board dimension reach the requirement of regulation；
(6) inspection warehouse-in: with reference to standard GB/T/T17657-2013 " wood-based plate and face artificial board physicochemical property test side
Method ", GB/T30100-2013 " building wall board test method " detect physical and mechanical property.
The preparation method of a kind of bamboo wood composite polyurethane expanded material wood-based plate the most as claimed in claim 1, is characterized in that: described
The operation wood single-plate of the first step, bamboo silk and bamboo powder drying equipment are dried to moisture content 3～12% under the conditions of 60～120 DEG C.
The preparation method of a kind of bamboo wood composite polyurethane expanded material wood-based plate the most as claimed in claim 1, is characterized in that: described
The polyurethane resin of the operation first step and the 3rd step selects polyether polyol, belongs to the polymer in polyether polyol many
Unit's alcohols, it is with polyether polyol as matrix, prepares through polymerisation in bulk through acrylonitrile or styrene, be i.e. polymerized in polyhydric alcohol
Thing polyether polyol, hydroxyl value index is 400～800 mgKOH/g.
The preparation method of a kind of bamboo wood composite polyurethane expanded material wood-based plate the most as claimed in claim 1, is characterized in that: described
The foaming agent of the operation first step and the 3rd step is a fluorine dichloroethanes.
The preparation method of a kind of bamboo wood composite polyurethane expanded material wood-based plate the most as claimed in claim 1, is characterized in that: described
The catalyst of the operation first step and the 3rd step is the one in dimethylamine, trimethylamine or triethylamine.
The preparation method of a kind of bamboo wood composite polyurethane expanded material wood-based plate the most as claimed in claim 1, is characterized in that: described
The stabilizer of the operation first step and the 3rd step is triethylene diamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610735395.9A CN106313264B (en) | 2016-08-29 | 2016-08-29 | A kind of preparation method of bamboo and wood composite polyurethane expanded material wood-based plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610735395.9A CN106313264B (en) | 2016-08-29 | 2016-08-29 | A kind of preparation method of bamboo and wood composite polyurethane expanded material wood-based plate |
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| CN106313264A true CN106313264A (en) | 2017-01-11 |
| CN106313264B CN106313264B (en) | 2018-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030051A (en) * | 2021-11-29 | 2022-02-11 | 南京林业大学 | Method for preparing glue-free self-bonding environment-friendly artificial board by microwave pretreatment of wood powder |
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| CN104985648A (en) * | 2015-06-24 | 2015-10-21 | 中国林业科学研究院木材工业研究所 | Flame-retardant composite plate containing phenolic foam crushed material and manufacturing method and application thereof |
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|---|---|---|---|---|
| JP2002240009A (en) * | 2001-02-16 | 2002-08-28 | Hokkaido | Method for manufacturing woody composite plate |
| CN201232348Y (en) * | 2008-07-23 | 2009-05-06 | 仇杏源 | Environmental protection resin foaming formwork |
| WO2010119431A2 (en) * | 2009-04-16 | 2010-10-21 | Unilin, Bvba | Board material, methods for manufacturing board material and panel which contains such board material. |
| CN102470576A (en) * | 2009-06-29 | 2012-05-23 | 小松道男 | Wood powder-containing resin molded article and method for producing the same |
| CN102635194A (en) * | 2012-05-09 | 2012-08-15 | 南京林业大学 | Environment-friendly raw bamboo reinforced light bamboo composite material and processing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030051A (en) * | 2021-11-29 | 2022-02-11 | 南京林业大学 | Method for preparing glue-free self-bonding environment-friendly artificial board by microwave pretreatment of wood powder |
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| CN106313264B (en) | 2018-04-06 |
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